Compressed-air starting device for motors.



0. E. JdRGENSEN. COMPRESSED AIR STARTING DEVICE FOR MOTORS.

APPLIGATION FILED MAY 18, 1912. 1,095,403 Patented May 5, 1914.

TED STAWE i orrrcn.

OLAV ESKIL JGRG'ENSEN OF COPENHAGEN. IDEhill I1 1BK.

' COMPBESSED AIR STARTING DEVICE FOR ."EIIO'lfIHl-S.

Specificatien of Letters Patent.

To all 107mm. 1' may concern:

Be it known that I, Onxv Esnn. Jouoisxsnx, chief engineer, a subject of the Kingdom of Denmark, residing at X0. 9 Overgaden u. V. 9, in the city of Copenhagen, Denmark, have invented certain new and useful Improvements in Compressed-Air Starting Devices for Motors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as, will enable others skilled in the art to which it appentains to make and use the same.

- out of contact with said cam.

The purpose of the invent-ion is to arrange said device in such a manner that said conneeting-mechanism by means of the compressed air is automatically brought into or out of contact with said cam.

A constructional form of the invention is illustrated in the drawing, in which-.

Figure 1 is a transverse-section of the valve, and Fig. 2 a sectional view of the complete arrangement. y

1 is a starting valve and 2 the channel through which compressed air is supplied. This valve is controlled by mechanism including a composite bar. Thusto the upper end of the valve-spindle 17 is fixed a cylin= drical cup 3 between which and the cover 4 of the motor cylinder 2. spring 5 is inserted,

which normally presses the valvetoward its roller 13 can be brought into contact with a cam 14 and driven in timed relation to the crank shaft. The members 17, 3, 7 and 9 form a composite bar. The valve-spindle 17 is provided with a channel 15 connecting the compressed air channel 2 to the interior 16 of the cup 3.

Normally the piston "I is held down by the spring 8 so that the end of the lever 11. to which the connecting bar 12 is attached. is raised. thereby holding the roller 13 in inoperative position, it is out of contact with the valve operating cam roller 14. 20. When the engine shall be started the main shaft of the engine is turned until the cam 20 of the cam roller 1; is directly beneath the roller 13. Then compressed air is supplied to the channel 2 from which a part will pass through the CllzUlilQhlS into the space 16 below the piston T, which latter consequently will be lifted against-the action of the spring 8 until it bears against the ring-shaped stop 18. and it will be maintained. in this lifted position as long as compressed air is supplied to the channel 2.- W hen the piston 7 is lifted. the composite valve stem 1?. 9 is lengthened, causing the lever 11 to be rocked, thereby pressing the roller 13 against the cam 20 so that the valve 1 is opened and compressed air enters the engine cylinder and moves the engine piston. Of course the main shaft of the engine is rotated and the valve operatingcam 1%. 20 will consequently now operate the starting valve 1 in the ordinary manner, as long as compressed air is supplied to the channel 2 and causes the piston 7 to maintain its uppermost position. The operating surface of the piston '7 has such'an area. that a very little pressure of a y p rt-rented Ma i} sire-ref Application filed May 18, 1912. eria1No. 698.187.

compressed air will be suliicient to maintain 18, so that said piston together with the cup 3 will be pressed down overcoming the spring 5 and thereby open the valve 1, when the cam projection 20 lifts the connecting bar 19. and presses down link 9. \Vhen the compressed air is exhausted from the channel 2 the spring 5 will lift the cup 3 and the spindle 17 thereby closing the'valve 1. Simultaneously-the spring 8 returns the piston 7 to the position shown in Fig. 1.

' As previously stated the device illustrated and described is only a constructional form of the invention and 'the latter is characterized by the fact that the controlling mechanism ofthe starting valve is automatically put into operation when compressed air is sup- Ice for compressed gas leading to said cylinder,

, a valve controlling communication between said conduit and the cylinder, an actuating lever for the valve, means for operating said actuating lever normally in inoperative relation thereto and means interposed between a valve controlling communication between said iinduitand the cylinder, a valve actuating lever, means for driving said lever normally in inoperative relation thereto, and a connection between said lever and the valve adapted upon admission of com pressed air to said conduit to move said lever into a position to be operated by said driving means and designed upon the cut ting ofi of the admission of compressed gas to said conduit to automatically move the lever to an inoperative position;

3. In a starting device for engines, the combination with the cylinder, of a conduit for compressed gas leading to said cylinder, a valve controlling communication between said conduit and the cylinder, means for controlling the valve and. means interme diate said controlling means and the valve adapted to connect the controlling means and the valve when compressed gas is supplied to said conduit and to automatically disconnect the controlling means and the valve when the supply of compressed gas to said conduit is cut oil. r

4. In a starting device for engines, the combination with the cylinder, of a conduit for compressed gas leading to said cylinder, a valve controlling communication between said*conduit and the cylinder, means for controlling the valve including a composite bar, and means for automatically lengthening and shortening said composite bar respectively when compressed gas is supplied to and cut oil from said compressed gas conduit.

In a starting-device for engines, the

combination'with' a cylinder, of a conduit for compressed gas leading to said cylinder,

a valve centrolhng communication between the conduit and the cylmdena composite bar controlling said valve including a piston and cylinder, a spring acting normally to- 6. In a starting device for engines, the

combination with the cylinder, of a conduit for compressed air leading to said cylinder, a valve controlling the communication-be tween said conduit and the cylinder, an actuating lever tor said valve, means for op erating said actuating lever normally in inoperative relation thereto, and means associated with said lever for efi'ecting an opera-tire relation betwe'en the lever and said actuating means, including a piston and cylinder, and means acting to normally hold the last mentioned piston inward, there bciug a compressed air connection to said last mentioned cylinder.

In testimony whereof, I aliix my signature, in presence of two witnesses.

OLAV ESKIL JORGENSEN. llitnesses Marcus Momma, C. E. CURTIS. 

